Thermosetting epoxy resin/thermoplastic system with combined shape memory and self-healing properties

被引：55

作者：

Yao, Yongtao ^{[1
]}

Wang, Jingjie ^{[1
]}

Lu, Haibao ^{[1
]}

Xu, Ben ^{[2
]}

Fu, Yongqing ^{[2
]}

Liu, Yanju ^{[1
]}

Leng, Jinsong ^{[1
]}

机构：

[1] Harbin Inst Technol, Sci & Technol Adv Composites Special Environm Lab, Harbin 150080, Peoples R China

[2] Northumbria Univ, Fac Engn & Environm, Smart Mat & Surfaces Lab, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

来源：

SMART MATERIALS AND STRUCTURES | 2016年 / 25卷 / 01期

基金：

中国国家自然科学基金;

关键词：

shape memory composite; self-healing; electrospinning; POLYMER FIBERS; NANOCOMPOSITES; GRAPHENE; PERFORMANCE;

D O I：

10.1088/0964-1726/25/1/015021

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A novel and facile strategy was proposed to construct a thermosetting/thermoplastic system with both shape memory and self-healing properties based on commercial epoxy resin and poly(epsilon-caprolactone)-PCL. Thermoplastic material is capable of re-structuring and changing the stiffness/modulus when the temperature is above melting temperature. PCL microfiber was used as a plasticizer in epoxy resin-based blends, and served as a 'hard segment' to fix a temporary shape of the composites during shape memory cycles. In this study, the electrospun PCL membrane with a porous network structure enabled a homogenous PCL fibrous distribution and optimized interaction between fiber and epoxy resin. The self-healing capability is achieved by phase transition during curing of the composites. The mechanism of the shape memory effect of the thermosetting (rubber)/thermoplastic composite is attributed to the structural design of the thermoplastic network inside the thermosetting resin/rubber matrix.

引用

页数：8

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